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Sink

Atosa SS1818D31D18 — 3-Compartment Sink, 18"x18" bowls, 90"W x 23.5"D, 18-ga 304 stainless, L&R drainboards

Specs & image © Atosa. Independent reference — verify on the spec sheet.
Dimensions
90" deep × 23.5" long × 43.75" high
Atosa SS1818D31D18 — 3-Compartment Sink, 90"W x 23.5"D

The Atosa SS1818D31D18 is a 3-compartment commercial stainless steel sink measuring 90″×23.5″ overall, built from 18-gauge 304 stainless. Each bowl is 18″×18″ and 12″ deep. Three bays cover the wash-rinse-sanitize sequence for manual warewashing. Left and right drainboards give landing space for soiled and clean ware. The 304 alloy resists corrosion in a constantly-wet warewashing area. It is NSF listed and backed by a 90 days (workmanship) warranty.

Buying considerations

Three compartments cover the wash-rinse-sanitize sequence; confirm whether your local health code requires a fourth bay, and add left and right drainboards for soiled and clean ware. Match bowl size and depth to your largest pans. Browse all compartment sinks →

Specifications

SpecDetail
Compartments3
Bowl width18"
Bowl front-to-back18"
Bowl depth12"
Overall width90"
Overall depth23.5"
Overall height43.75"
DrainboardsLeft & Right
Drainboard length18"
Backsplash—
MaterialStainless steel
Stainless gradeType 304 stainless
Gauge18 gauge
LegsStainless
Faucet includedNo
Faucet centers—
Drain size3.5"
NSF listedYes
Warranty90 days (workmanship)

A dash (—) means the manufacturer has not published that specification.

Pulled from Atosa

Shipping & handling

UPS / small parcel — light enough to ship ground (62.78 lb), no freight appointment or liftgate needed.

Ships byUPS / ground parcel
Product weightNot published
Shipping weight62.78 lb
Shipping dimensionsNot published

Related equipment

What to check when buying compartment sinks

Match compartment count and drainboards to your wash-rinse-sanitize and code needs.

Try the Water heater sizing calculator →
Published by Resultex Media Group LLC · Independent & vendor-neutral · Educational only, not legal or engineering advice · Last verified September 2026